Following up on earlier report:"the falcon will make a big appearance, 1.1 scale size cross section is being constructed over at Pinewood..."
Sources now say that a "...full-scale 1:1 Millennium Falcon has been built as well as the interiors of the ship for filming..." the sections of the ship were built off site, and are waiting to be moved to the studio.
(Source: UK.movies.Yahoo.com)